IA64: Consolidate nptl/ subdirectories under linux/...

sysdeps/unix/sysv/linux/ia64/unwind_longjmp.c

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+/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stddef.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <pthreadP.h>
+#include <jmpbuf-unwind.h>
+
+extern void __sigstack_longjmp (__jmp_buf, int)
+     __attribute__ ((noreturn));
+
+/* Like __libc_siglongjmp(), but safe for crossing from alternate
+   signal stack to normal stack.  Needed by NPTL.  */
+void
+__libc_unwind_longjmp (sigjmp_buf env, int val)
+{
+  /* Perform any cleanups needed by the frames being unwound.  */
+  __pthread_cleanup_upto (env->__jmpbuf, CURRENT_STACK_FRAME);
+
+  if (env[0].__mask_was_saved)
+    /* Restore the saved signal mask.  */
+    (void) __sigprocmask (SIG_SETMASK, &env[0].__saved_mask,
+			  (sigset_t *) NULL);
+
+  /* Call the machine-dependent function to restore machine state.  */
+  __sigstack_longjmp (env[0].__jmpbuf, val ?: 1);
+}
+hidden_def (__libc_unwind_longjmp)